Corynopuntia invicta (Brandegee) F.M. Knuth Corynopuntia invicta (Brandegee) F.M. Knuth, Kaktus-ABC: 114. 1936 sec. Hunt & al. 2006≡Opuntia invicta Brandegee in Proc. Calif. Acad. Sci., ser. 2, 2: 163. 1889 syn. sec. Guzmán & al. 2003